Articles tagged with Global Temperature
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A study by GIST researchers found that Arctic warming is correlated with severe winters in East Asia and North America. The 'Warm Arctic-Cold Continent' phenomenon will persist but become more difficult to predict under warmer climates.
The new dataset provides a 'ranking' of countries contributing most to global warming, with CO2 emissions driving the most warming. Countries like Brazil and Indonesia are rising in their contribution, while industrialised nations see slight declines.
New research reveals methane traps heat in the atmosphere but also creates cooling clouds that offset 30% of the heat. Methane absorbs both longwave and shortwave energy, leading to a slight cooling effect.
A new analysis of innovative approaches to project economic impacts along climate mitigation pathways reveals near-term emissions reductions are globally economically optimal, with central estimates for 'optimal warming' around 1.8-1.9°C by 2100. The study estimates that one euro invested in climate solutions saves the world about 1.5 ...
Researchers used a 3D radar scan to reveal that Malaspina Glacier is undercut by channels, making it more vulnerable to melting and potentially contributing significantly to global sea level rise. The glacier's bulk sits below sea level, and its coastal barrier erodes, allowing ocean water to access the glacier and accelerate its retreat.
A recent study confirmed that a record-high temperature recorded in October 2021 would have been extremely unlikely to occur without the influence of global warming. The team quantified how often such heatwaves may occur during future fall seasons under different greenhouse gas emission scenarios.
Researchers estimate worldwide changes in plant leaf growth due to global warming, finding that greening trends have a stronger association with carbon uptake than growing season length. Satellite imagery and field sensors reveal new insights into the impact of climate change on vegetation productivity and carbon capture.
A new study finds that rising temperatures will increase harmful plant emissions and dust, leading to a 14% boost in air pollution. The degradation in future air quality from natural sources is predicted to be significant, with two-thirds of the pollution coming from plants.
Researchers found that the Paleocene-Eocene Thermal Maximum, a 5-8°C warming event, was caused by high carbon dioxide and methane levels. The team's study provides new insights into sedimentary systems and the impact of seasonal changes on ocean turbidity.
A review article in Nature suggests that the Earth was likely warmer 6,500 years ago and followed a cooling trend until human-caused warming began. The study's findings highlight uncertainties in climate models and underscore the need for further research on natural climate variability.
Researchers conclude that social changes, such as consumption patterns and climate protests, are crucial in meeting the 1.5-degree goal, but current efforts are insufficient. A new approach to adaptation is necessary to address the impacts of global warming.
A new study reveals that fishes in the deep ocean are likely to decrease in size with climate warming, which could have significant ecological effects. Researchers analyzed ancient fish otoliths to track changes in body size over glacial and interglacial periods.
Researchers created a map of ancient ocean 'dead zones' to predict future locations and impacts of low oxygen zones in a warmer Earth's oceans. The map showed that during the Pliocene epoch, low-oxygen waters were widespread in the Atlantic Ocean, particularly in the North Atlantic.
Scientists found the Bering Land Bridge was flooded until 35,700 years ago, with its full emergence occurring shortly before human migration to the Americas. The study's findings suggest a less direct relationship between climate and global ice volume, casting doubt on some explanations for ice age cycles.
A new study finds that global warming overshoots could trigger climate tipping events, even if temperatures are limited to 1.5 degrees Celsius. The risk of triggering one or more tipping points would still be over 50 percent in such scenarios.
A UMaine-led study shows that mountain glaciers are linked to shifting westerlies and likely to accelerate due to global warming. The researchers found that fluctuations in glacial snowlines reflected temperature changes over large regions of the atmosphere.
Researchers found that oscillations between extreme wetness and aridity in California were closely linked with wildfires during the 8.2-kiloyear event. The study suggests that hydroclimate fluctuations will become more common due to global warming, leading to an increase in wildfire activity.
A study by the University of Reading found that up to 20-25% of UK land may be suitable for growing high-quality Chardonnay still wines by 2050. The regions with the best conditions are expected to be South East England, East of England, and Central England.
Researchers at the University of Bern have developed a new method to determine necessary emission reductions on a continuous basis. The AERA algorithm adjusts CO2 emissions according to latest temperature data, enabling more precise calculations.
A new model reveals that warmer Arctic Ocean evaporation transports moisture south, leading to increased snowfall in northern Eurasia. The study sheds light on the mechanism of this phenomenon and its impact on severe weather events.
Scientists have confirmed the existence of a 'stabilizing feedback' mechanism that regulates Earth's temperature over hundreds of thousands of years. Silicate weathering is believed to be the likely cause, drawing carbon dioxide out of the atmosphere and into ocean sediments.
A recent study by 70 scientists highlights the devastating effects of climate change on insects, which play critical roles in ecosystems. Gradual warming and extreme events harm insects, affecting their physiology, behavior, and interactions with other species.
Scientists have successfully tracked CO2 emissions from the Bełchatów power plant in Poland using existing satellites. The study demonstrates that tracking-at-the-source is already possible for 'super-emitters' like this facility, and its success is an important achievement. The results indicate that the EU's planned CO2M mission will ...
A new study suggests that the US economy's supply chains cannot compensate for local production losses from hurricanes if climate change continues. The researchers found that even under moderate warming scenarios, hurricane damages will exceed the economy's coping capacities, leading to indirect economic effects and price increases for...
Researchers used largest temperature reconstruction database to find no globally synchronous warm period during the Holocene. Regional variability in temperature suggests high latitude insolation played a major role in driving climate changes.
A new study finds that even a modest temperature increase of 1.5°C will spell serious consequences in India, China, Ethiopia, Ghana, Brazil, and Egypt, with droughts projected to last longer than two years in some countries. Limiting warming to 1.5°C could greatly benefit all six countries, but meeting the Paris Accords is crucial to r...
A new analysis reveals that the world is already at risk of passing five dangerous climate tipping points, even at current levels of global heating. The study synthesizes evidence from over 200 papers and identifies 16 major biophysical systems with potential to cross tipping points.
A new study suggests that global fish stocks will not be able to recover to sustainable levels without strong actions to mitigate climate change and overfishing. Climate change has reduced fish stocks in 103 of 226 marine regions studied, including Canada, from their historical levels.
A new Harvard-led study reveals that rising global temperatures caused the explosive evolution of early reptiles, challenging previous explanations. The research suggests climate change triggered morphological changes in reptile groups, including those that gave rise to crocodiles and dinosaurs.
A new study suggests that using propane as a refrigerant in air conditioners could significantly reduce the global temperature increase from space cooling, with a potential decrease of up to 0.09°C by the end of the century. This is due to propane's low global warming potential score of less than 1.
A new study by Durham University suggests that the East Antarctic Ice Sheet can be protected from devastating effects of global warming if temperature increases are kept below 2°C. The researchers found that staying within this limit could prevent significant ice loss and contribute less than half a metre to sea level rise by 2500.
Children are at risk of heat-related health problems due to obesity and physical inactivity. Fitter adults can better tolerate high temperatures, but research suggests children need daily physical activity to build fitness.
Researchers found that greenhouse gases are the primary reason for increased temperatures and will likely continue to be the main cause of hotter temperatures in the future. The study suggests that extreme heatwave events will increase by more than 30 percentage points in coming years, with almost two-thirds caused by greenhouse gases.
A study of over 32,000 West African children found that extreme heat exposure increases the prevalence of stunted growth from chronic malnutrition by 12% and of low weight from acute malnutrition by 29%. The researchers estimate that rising temperatures could nearly double the effect of heat exposure on stunting.
A study published in Biogeosciences reveals a strong relationship between global temperature changes and mass extinctions. The research, led by Professor Emeritus Kunio Kaiho, found that both marine animals and terrestrial tetrapods' extinction rates correspond to deviations in global and habitat surface temperatures.
Researchers have discovered a technique to remove phosphorus from wastewater at higher temperatures, using bacteria to store the chemical. The SCELSE-developed innovation extends the temperature range of enhanced biological phosphorus removal to 35 degrees Celsius.
A new study reveals that Arctic temperatures have jumped by two steps in the last 50 years, with the second step occurring in 1999 and missed by most climate models. The findings are significant for projecting future climate change, as they highlight the need for more accurate short-term climate projections.
A machine-learning model improved the simulation of European heatwave frequency by analyzing climate factors, with sea surface temperature contributing most to predictions. The model found that previous winter climate factors provided the best simulation results.
A new study models potential impacts on global biodiversity if temperatures increase by more than 2°C and then decline again. Tropical regions are most affected, with over 90% of species pushed outside their thermal niches.
The Siberian tundra is projected to disappear entirely unless ambitious greenhouse-gas reduction measures are taken. A simulation shows that only 30% of the tundra can survive with aggressive climate protection, while the rest will be lost.
A new study finds that reducing emissions of short-lived climate pollutants like methane and ozone can cut the rate of global warming in half by 2050. This approach offers a fighting chance to prevent catastrophic warming and improve our chances of remaining below the 1.5 degree centigrade mark.
A new study in Northern Sweden found that methane emissions from thawing permafrost can be reduced by a factor of 10 due to changes in hydrology, plant community, and microorganisms. As permafrost thaws, new plant species adapt to drier soil conditions, reducing methane transport and allowing bacteria to break it down.
Research suggests that expansion of vegetation in the Northern Hemisphere led to a significant warming of global temperatures between 6,000 and 9,000 years ago. The findings align with paleoclimate proxy records and challenge previous models' limitations in accounting for vegetation changes.
A new study finds that while immediate economic benefits of carbon emissions reductions are limited, most scenarios have net economic benefits after 2050. The benefits are most dramatic for developing countries, with a median net benefit of 6.0% of GDP for a 1.5°C reduction target.
A recent peer-reviewed study reveals that tropical forests play a vital role in maintaining global climate stability by reducing extreme temperatures and promoting local climate stability. The study finds that the entire world benefits from the band of tropical rainforests, which keep the planet cooler by up to 1 degree Celsius.
Researchers used a novel model ensemble to study compound hot-dry-events and found that precipitation trends determine their future occurrence. The frequency of these events is expected to increase fourfold in a two-degree warmer climate, with an uncertainty of up to 48% for precipitation trends.
Research in Africa identified heatwave hotspot regions linked to urban areas, affecting 36% of Northern Hemisphere and 57% of Southern Hemisphere populations in 2019. Climate change likely contributed to these hotspots, with significant implications for human health, energy consumption, and water security.
A new study from Karolinska Institutet projects that a temperature rise of 2 degrees Celsius will increase hyponatremia hospitalizations by almost 14%. Women and elderly are particularly vulnerable to the increased risk, with those over 80 years old facing a 15 times higher chance of hospitalization during heat waves.
Research finds that global warming of 2°C will significantly increase temperature-related mortality rates in England and Wales by 42%, from around 117 deaths per day to 166. The risk further increases beyond 2.5°C, with a potential 75% increase in mortality risk at 3°C.
A fresh analysis suggests that the global cooling effect of the Hunga Tonga-Hunga Ha'apai volcano eruption will be smaller than expected. However, the researchers warn that a one-time-only event may not be sufficient to overwhelm the longer-term global warming tendency.
A new UNSW-led study reveals that global warming has amplified the water cycle, with an estimated 46,000-77,000 cubic kilometers of freshwater transported from the equator to the poles since 1970. This finding suggests broader changes to the global water cycle and highlights the need for improved climate models.
A new Stanford University study reveals that using a 100-year timeframe underestimates methane's importance in achieving Paris Agreement climate goals by up to 87%. The researchers propose using a 24-year timeframe instead, which would ensure emissions of methane are weighted correctly over the time period before temperature thresholds...
Researchers from The University of Tokyo developed a model to predict the occurrence of red snow events, which are associated with the duration of snow melt and the timing of new snowfall. The study found that snow algae blooms can speed up snow melt as they darken the surface.
The upper ocean has reached record-breaking temperatures for the sixth consecutive year, with the latest data showing a significant increase in heat content. This warming trend is primarily driven by human-induced climate change, which affects ocean acidification and marine life.
Researchers from the University of Oxford investigated the behavior of CO2 within a depleted hydrocarbon reservoir in Louisiana, USA. They found that up to 74% of CO2 was dissolved in groundwater, while microbial methanogenesis converted 13-19% of the injected CO2 to methane.
A new UC Riverside-led study reveals that tiny microbes belching toxic gas helped cause and prolong the biggest mass extinction in Earth's history. The heat accelerated microbes' metabolisms, creating a deadly cycle of hydrogen sulfide production.
A Dartmouth team compiled a global-scale dataset to show how uncertainties over determining snow depth can actually improve predictions of water availability. The approach leverages observational and definitional uncertainties to make better assessments of snow droughts and their impacts.
A new study reveals that the Little Ice Age was triggered by an unusually warm episode in the late 1300s, with strong northward transfer of warm water and high solar activity contributing to the phenomenon. The researchers found that this warming event led to rapid arctic ice loss and subsequent cooling of North Atlantic waters.
A new international study by IIASA reveals that rapid emissions cuts in the next few decades can avoid temperature overshoot, plateauing global temperatures around the time of net-zero emissions. This approach also yields long-term economic benefits, with projected GDP increases of up to 2% in scenarios that avoid overshoot.
Extreme heat events are associated with a greater risk of death from ischemic heart disease, stroke, and heart failure. Preventive strategies aim to reduce hyperthermia and dehydration to minimize cardiovascular risk during extreme heat events.